The most anticipated UFC fight of the year ended with Khabib Nurmagomedov tapping out Conor McGregor on Saturday night at Las Vegas' T-Mobile Arena. However, that was just the start of the chaos, as Nurmagomedov climbed over the Octagon wall to start swinging at McGregor's jiu-jitsu coach, Dillon Danis, and two members of Nurmagomedov's team jumped into the Octagon to throw punches at McGregor.

Khabib Nurmagomedov has Conor McGregor in deep trouble in the fourth round, pinning McGregor to the cage wall and working to get under the chin. Joe Amon for ESPNMcGregor has trouble catching his breath with Nurmagomedov putting full weight on top while in the corner. Stephen R. Sylvanie/USA TODAY SportsUFC referee Herb Dean calls the fight at 3:03 of the fourth round via rear-naked choke as Nurmagomedov retains his lightweight title. Joe Amon for ESPNAfter yelling at McGregor, Nurmagomedov gets up and starts pointing and yelling toward McGregor's corner as well as throwing his mouthpiece in their direction. Joe Amon for ESPNMcGregor pauses in the corner to catch his breath after the defeat in his first UFC match since November 2016. Joe Amon for ESPNNurmagomedov begins climbing the cage, despite the efforts of a Nevada State Athletic Commission official trying to pull him back in. Joe Amon for ESPNLas Vegas police try to intercede but ultimately cannot stop Nurmagomedov from getting to Dillon Danis, a Bellator welterweight who serves as McGregor's jiu-jitsu coach. Joe Amon for ESPNAfter a brief scuffle in the crowd between the two, Danis (white shirt) and Nurmagomedov (bottom) are separated by police and UFC security. Stephen McCarthy/Sportsfile/Getty ImagesNurmagomedov and Danis continue to yell at each other as more security and police arrive to fully break apart the two. Joe Amon for ESPNMcGregor is escorted out of the arena after the fight. During the postfight scuffle outside the ring, two members of Nurmagomedov's team jumped the fence and started punching McGregor before security quickly stepped in to stop them. Joe Amon for ESPNThree members of Nurmagomedov's team were arrested Saturday night, and UFC president Dana White said the company could strip Nurmagomedov's lightweight championship if he is suspended by the Nevada State Athletic Commission. Joe Amon for ESPN